Bber for clover-hullers



(No Model.)

J. N. KAILOR.

I RUBBER P03 GLOVER HULLBRS. "Nd. 310,521. r Patented Jan. 6, 1885.

Warren d'rrirne Parent tries.

JOHN N. KAILOR, OFNEXVARK, ASSIGNOR TO THE NEXVARK MACHINE COMPANY, OFCOLUMBUS, OHIO.

RUBBER FOR CLUVER-HULLERS.

SPECIFICATION forming part of Letters Patent No. 310,521, dated January6, 1885.

(N0 model.)

To aZZ whom it may concern.-

Be it known that I, JOHN N. KAILOR, a citizen of the United States,residing at Newark, in the county of Licking and State of Ohio, haveinvented certain new and useful Improvements in Rubbers forOlover-Hullers, of which the following in a specification, referencebeing had therein to the accompanying drawings.

My invention relates to an improved metallic rubber or tooth for thecylinders of clover-hullers; and the novelty consists in the peculiarconstruction and adaptation of the same, as will be more fullyhereinafter set forth, and pointed out in the claims.

The invention is designed as an improvement upon the rubber patentedMarch 6, 1877, No. 188,064, the title to which patent and to thisinvention resides in the same party. The device set forth in that patenthad corrugated sides, a thick back, and a smooth front. The sides werein a plane between the front and back, and were consequently at an angleto each other, and the corrugations were soarranged as to operatelaterally upon the pods and heads of the clover, the said material beingrubbed more thoroughly at the rear portions of the rubber. Thecorrugations extended in a plane from one edge to the other in the formof straight grooves, and the front or rear edges were flat or slightlyrounding and smooth. Subsequent experiments have developed that suchrubbers did not combine all the valuable advantages necessary, and thatsome of the features were faulty.

My improved rubber is adapted for service with most complete resultsupon the lower cylinder of a elover-hullcr of the class described in thepatent hereinbefore mentioned, and the essential object of the inventionis to produce a rubber having a thin narrow front edge, with some of thecorrugations extending thereto, and parallel corrugated sides. The sharpfront is produced by.a gradual. incline commencing near the front bothof the body and the corrugations, and allows the rubber to enter thematerial easily and gradually without pushing the heads and pods alongin front of the rubber, and also provides a multiplicity ofbreaking-edges at the junctions of the corrugations with the front edge.This feature of' readily entering the material gives a gradual andsufficient feed between the moving rubbers and those of the concaves,toeffect a very complete breaking up of the hulls and 'pods, and upon thisfeature, with the multiplied projecting edges on the front and thevertical sharp edge, rests the gist of the invention.

The invention is illustrated in the accompanying drawings, which form apart of this specification, and in which Figure l is a side elevation ofmy improved rubber. Fig. 2 is a front elevation, and Fig. 3 is ahorizontal section taken through the line :0 a: of Fig. 1. Fig. 4 is anenlarged detail.

Referring to the drawings, A designates the shank of my improved rubber,which is rectangular in cross-section, to correspond with a bearing inthe cylinder having a similar form, and which serves to prevent therubber from displacement. The shank A is threaded at a to receive asecuring-nut, a, as is usual in such devices. The body of the rubber hastwo parallel sides, and is of square or rectangular contour. The sides Bhave corrugations or ridges b, and these corrugations lie obliquely ortransversely to the line of travel, or approximately so. Both the bodyand corrugations are chamfered off or inclined inward at Z) to provide asharp edge, 0, the corrugations extending fully up to this edge 0 andforming a junction therewith. Where each of the corrugations connectswith the prow or edge C there are formed four projections, as seen inFig. 4. at 1 2 3 4, which serve very eflrciently to stir, break,separate, and disrupt the heads and pods of the clover.

This rubber is made of steel, and may be used with success upon eithercylinder or ineither concave. The tap and nut are not es sential, as therubbers may be driven into closed cylinders or concaves which have beenprepared for them. By omitting the prow G and extending the grooves andridges alternately up a vertical front edge, I can produce an undulatedcontour upon a sharp front; but this feature is made the subject-matterfor a separate application filed-simultaneously herewith.

In lieu of making the ridges or corrug.

tions on opposite sides of the rubbers meet at the same point on theprow, they can break joints or alternate from side to side of the prow,as will be readily understood.

I have hereinbefore shown and described the rubber as having parallelsides; but I do not wish to be understood as limiting myself to rubbersin which the sides are geometrically parallel, or substantially so,since my 10 improved construction can be employed on rubbers the sidesof which are not parallel.

Having thus fully described my invention, What I claim, and desire tosecure by Letters Patent of the United States, is-

1. A rubber for clover-hullers, comprising two sides having corrugationsarranged transverse to the line of travel, a chamfered orinclinedportion, as 12, forming a sharp front edge, 0, and multipliedprojections 1 2 3 4, as set forth.

2. A rubber for clover-hullers of the class described,comprising,essentially,two parallel sides having corrugations arrangedtransverse to the line of travel, a chamfered or inclined portion, as b,to give a sharp front edge, 0, and multiplied projections, as 1 2 3 4,as set forth.

8. The rubber described, having the parallel corrugated sides B b, sharpfront 12, forming a ridge or prow, O, projections 1 2 3 4, therectangular shank A, having thread a,and nut a, the whole adapted toserve as and for the purposes set forth.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN N. KAILOR.

WVitnesses:

A. N. APPLEMAN, O. J. 'THOWAS.

